吐温20,TWEEN® 20;Low-peroxide; Low-carbonyls

别名:吐温-20,聚山梨酯20,聚氧乙烯山梨糖醇酐单月桂酸酯,聚氧乙烯脱水山梨醇单月桂酸酯,TWEEN 20,TWEEN-20

CAS号: 9005-64-5 MDL编号: MFCD00165986 NACRES: NA.21
制造商品牌: 西格玛 Sigma-Aldrich
货号(SKU): P6585
CAS号: 9005-64-5
MDL号: MFCD00165986
签订合同 √ 正规发票 √ 技术支持 √ 质量保障 √ 全程可追溯 √
¥1,332.60

说明

吐温®20是一种属于聚山梨醇酯家族的聚氧乙烯山梨醇脂。它是一种分子量为1225道尔顿的非离子洗涤剂,假定20个环氧乙烷单元、1个山梨醇和1个月桂酸为主要脂肪酸。环氧乙烷亚基负责表面活性剂的亲水性,而烃链提供疏水环境。山梨醇形成环氧乙烷聚合物附着的主链。

一般描述

Tween®20 is a polyoxyethylene sorbitol ester that belongs to the polysorbate family. It is a nonionic detergent having a molecular weight of 1,225 daltons, assuming 20 ethylene oxide units, 1 sorbitol, and 1 lauric acid as the primary fatty acid. The ethylene oxide subunits are responsible for the hydrophilic nature of the surfactant, while the hydrocarbon chains provide the hydrophobic environment. Sorbitol forms the backbone ring to which the ethylene oxide polymers are attached.
 

应用

Tween 20 has been used along with PBS to wash plates in ELISA technique.
非离子洗涤剂
 

制备说明

经纯化用于除去过氧化物和醛
 

法律信息

TWEEN is a registered trademark of Croda International PLC
 
 

属性

质量水平

200

描述

non-ionic

形式

viscous liquid

分子量

~1228

包含

BHT as antioxidant

杂质

≤0.5 μmol/g Peroxides
≤1.0 μmol/g Carbonyls
≤3.0% water

折射率

n20/D 1.468 (lit.)

CMC

0.06 mM (20-25°C)

转变温度

cloud point 76 °C

密度

1.095 g/mL at 25 °C (lit.)
1.1 g/cm3 at 25 °C (lit.)

HLB

16.7

储存温度

2-8°C

InChI

1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3

InChI key

HMFKFHLTUCJZJO-UHFFFAOYSA-N

 

安全信息

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(F)

527.0 °F - Pensky-Martens closed cup

闪点(C)

275 °C - Pensky-Martens closed cup

个人防护装备

Eyeshields, Gloves

商品规格
属性名称属性值
储存温度 Storage temp.-20°C低温冷冻
全球实时库存 Availability √美国St. Louis ≥ 50 | 欧洲Eur. ≥ 12 | 東京Tokyo ≥ 20 | 香港与北京 ≥ 50
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